What are the solutions to the equation 2x^3=-128 ?

The solutions to the equation 2x^3=-128 are x=-4,x=2-2sqrt(3)i,x=2+2sqrt(3)i

Find the zeros of 2x^3=-128

The zeros of 2x^3=-128 are x=-4,x=2-2sqrt(3)i,x=2+2sqrt(3)i

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2 x^{3} = - 128

x = - 4, x = 2 - 23 i, x = 2 + 23 i

Solution steps

2 x^{3} = - 128

Divide both sides by

2

x^{3} = - 64

For

x^{3} = f (a)

the solutions are

Simplify

x = - 4, x = 2 - 23 i, x = 2 + 23 i

- 2 x^{4} + 9 = 2 x + 3

40 x + 2 x^{2} - 2 x^{3} = 0

- x (x^{2} - 1) (x^{2} + 4) = 0

x^{5} - 3 x + 1 = 0

- 2 (9 x^{2} - 49) (x^{2} - 5) = 0

What are the solutions to the equation 2x^3=-128 ?
The solutions to the equation 2x^3=-128 are x=-4,x=2-2sqrt(3)i,x=2+2sqrt(3)i
Find the zeros of 2x^3=-128
The zeros of 2x^3=-128 are x=-4,x=2-2sqrt(3)i,x=2+2sqrt(3)i